CVE-2019-25539

8.2

202CMS · 202CMS

202CMS v10 beta is vulnerable to unauthenticated blind SQL injection via the log_user parameter, allowing attackers to extract sensitive database information through time-based payloads.

Executive summary

202CMS v10 beta contains a critical blind SQL injection vulnerability that allows unauthenticated remote attackers to compromise database integrity and confidentiality.

Vulnerability

The application is susceptible to CWE-89, Improper Neutralization of Special Elements used in an SQL Command, specifically via the log_user and reg_user parameters. This flaw allows an unauthenticated attacker to inject malicious SQL queries and execute time-based blind injection techniques against the backend database.

Business impact

Successful exploitation allows an attacker to exfiltrate sensitive data from the underlying database, potentially leading to a total compromise of application-specific user data. Given the CVSS score of 8.2, this vulnerability represents a high risk to organizational data security, as the lack of authentication requirements makes it trivial for remote actors to initiate attacks.

Remediation

Immediate Action: As there is no official patch available, administrators should immediately restrict access to the affected index.php and register.php endpoints or decommission the software if it is no longer required for business operations.

Proactive Monitoring: Security teams should monitor web access logs for anomalous POST requests containing SQL keywords or sleep commands directed at index.php and register.php.

Compensating Controls: Deploy a Web Application Firewall (WAF) with rules configured to detect and block SQL injection patterns, specifically targeting time-based payloads in POST parameters.

Exploitation status

Public Exploit Available: Yes, a published PoC exists, as documented in the Exploit-DB entry 46579.

Analyst recommendation

Due to the lack of a vendor-provided patch and the ease of exploitation, 202CMS v10 beta should be considered insecure for production environments. Organizations currently utilizing this software must implement strict network-level access controls or migrate to a supported and secure content management system immediately.

Sources